M5 Hexagon Slip Locking Flange Nuts made from high quality carbon steel,surface is plated with nickel for good rust resistance and better performance high hardness and a long service life
Flange nut is a nut that has a wide flange at one end that acts as an integrated, non-spinning washer,the serrations help in avoiding vibration of nut and increase the holding power of nut
High Strength Carbon Steel Nickel Plated Flange Nuts Dedicated for T-Bolt